The local health service confirmed the state government's coronavirus vaccination team arrived on KI this week and is giving the Astra-Zeneca vaccine to frontline workers - including healthcare and emergency services workers - as well as aged care residents.
When and where the community clinic will open for the general population, over 50s first, is yet to be determined, but announcements will be made as soon as this is known.
There is also no word yet on when the Pfizer coronavirus vaccine will arrive in SA and the Island for those under the age of 50.
Meanwhile new modelling by the McKell Institute suggests border closures made necessary by delays to Australia's vaccine rollout will cost the economy $16.4 billion.
Kangaroo Island, with 50 per cent of its tourists from overseas prior to the pandemic, will see its economy suffer because of the delay.
The state government's COVID-19 vaccine rollout is now set to reach even more South Australians including Islanders, with more government clinics providing Astra-Zeneca vaccines to the community as Phase 2a begins.
On Kangaroo Island, Astra-Zeneca vaccine is this week only being given to those eligible for the 1a and 1b phases, being frontline workers and aged care residents.
Minister for Health and Wellbeing Stephen Wade said a vaccination team had been sent to Kangaroo Island to start the process of providing the vaccine at the Kangaroo Island Health Service.
The latest data shows that South Australia has delivered more vaccinations per capita than any other mainland state - 9.8 doses per 100 persons - with only Tasmania and the ACT ranked higher.
The vaccination clinics, including at community clinic on Kangaroo Island Hospital when it opens, will now be able to vaccinate anyone aged 50 years and over, after the National Cabinet decision to fast-track vaccinations for this cohort.
"We are opening dedicated AstraZeneca clinics across the state so that South Australians aged 50 and over will have increased access to the vaccine, before the vaccine becomes available to this group through General Practices from Monday, May 17," Mr Wade said.
"The level of vaccination in South Australia continues to be above our share of the population and opening more clinics across the state will help us continue our safe, steady scale up of the vaccine rollout.
"In addition to the WCH clinic, a clinic will also open today at the Ceduna Town Hall and more clinics will be opening across the state in the weeks to come.
"We look forward to high levels of interest and ask people to be patient should they not be able to secure their appointment at the time they are hoping for."
Mr Wade said people can locate clinics and schedule an appointment online. For locations visit https://www.covid-19.sa.gov.au/